SPHERE Sheds New Light on the Collisional History of Main-belt Asteroids - Archive ouverte HAL
Article Dans Une Revue Eso Messenger Année : 2017

SPHERE Sheds New Light on the Collisional History of Main-belt Asteroids

Résumé

The Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE) instrument has unveiled unprecedented details of the three-dimensional shape, surface topography and cratering record of four medium-sized ( 200 km) asteroids, opening the prospect of a new era of ground-based exploration of the asteroid belt. Although two of the targets, (130) Elektra and (107) Camilla, have been observed extensively for more than fifteen years by the first-generation adaptive optics imagers, two new moonlets were discovered around these targets, illustrating the unique power of SPHERE. In the next two years SPHERE will continue to collect high- angular-resolution and high-contrast measurements of about 40 asteroids. These observations of a large number of asteroids will provide a unique dataset to better understand the collisional history and multiplicity rate of the asteroid belt.

Domaines

Planétologie
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Dates et versions

hal-03472357 , version 1 (09-12-2021)

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Citer

M. Marsset, B. Carry, M. Pajuelo, M. Viikinkoski, J. Hanuš, et al.. SPHERE Sheds New Light on the Collisional History of Main-belt Asteroids. Eso Messenger, 2017, ⟨10.18727/0722-6691/5035⟩. ⟨hal-03472357⟩
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